Car heating attachment



\ Dec. 26, 1950 Filed Aug. 3l, 1948 Dec. 26, 1950 A. .losl-:PHsoN2,535,424

CAR HEATING ATTACHMENT Filed Aug. 51, 1948 2 sheets-sheet 2 lll Il lllE, fasi/@msnm INVENTOR. /l 17 25 BY Hrm/@mix Patented Dec. 26, `1950 CARHEATING ATTACHMENT Archie Josephson, Hollywood, Calif., assigner toNational Heaters,vlnc., Glendale, Calif., a corporation of CaliforniaApplication August 31, 1948, Serial No. 47,103

This invention relates to air circulating and heatingv apparatus andrefers particularly to a portable device for use in places such asautomobiles and house trailers or buildings.

While many vehicles and buildings are equipped with air conditioningapparatus it is believed correct to say that most vehicles and rdwellinghouses in use at the present time are not so equipped, It is, for thisreason, the principal object of the present invention to provide acompact, simple and inexpensive portable'air circulating and heatingdevice which may-be placed within such vehicles, or within any otherspace in need of air conditioning, by detachably suspending the devicefrom the seat back or door of a car or any other convenient support of avehicle or building space.

Another object of the invention is to provide a device consisting of acasing and a pre-assembled circulating unit mountable therein.

To this end, the invention resides in the combinations hereinafter fullydescribed and a pre-H ferred form of device is illustrated in theaccompanying drawings, of which:

Fig. 1 is an elevational view of a device embodying the invention withthe front wall there of broken away;

Fig. 2 is a cross-sectional end view vtaken on line 2 of Fig. 1;

Fig. 3 is a bottom View of the device' with the bottom plate thereofpartly broken away; and

Fig. 4 shows one of the heat elements of the device.

The device of the invention` in the form illustrated in the drawings,comprises a box l, the top of which is closed by means of a cover 2.When fastened together, a neat rectangular casfing is provided and it istted at the `back thereof with an attachment element which, in thiscase, takes the form of a hook 3 of a size to fit over the sill of a cardoor window or any other suitu able support. In order to maintain thecasing in spaced relation to its support and so as to prevent rubbing ofthe casing. against the supporting surface, one or more soft,V,resilient buttons 4 may be placed on the rearwall of' the casing,beneath the hook 3.

An electric motor 5 is shown mounted within the casing and the shaft Eof this motor is in any suitable manner, as by a collar 1, secured tothe end of the shaft 8 of a blower 9. 4The circular fan of this bloweris mounted within a housing I0, having an inlet Il at the side; thereofaway from the motor. Air drawn through this inlet is expelled through anopening I2 at the bottom 4 Claims. Cl. 21B-39) 2 of the fan housing andthe casing. A screen i3 is iitted into this opening to block entranceinto the fan and so to eliminate danger ci' fingers or other objectsaccidentally reaching the rotating blades of the fan.

1n front of the inlet opening of the fan is seated a pair of heatelements itl, in parallel spaced relation to each other and to the fan.These elements may conveniently consist of sheets of mica between whichare placed flat wires i6, such as conventionally are employed 'in heatelements, and the combined sheets are, as indicated in Fig. 4, heldfirmly in position within light, rectangular frames il which may be andpreferably are exactly alike. Between these heat elements is placed abaille plate i3. As shown in Fig. 2, the two heat elements and thisplate all span the space across the casing and the elements extendupwardly from the bottom thereof nearly to the top of the blower. Theplate IB reaches downward from the cover substantially the samedistance. When so arranged, it is found that air by the fan is drawn inthrough a casing opening it and that it ilcws along all four surfaces ofthe heat elements in the direc tion of the arrows of Fig. l, to bedischarged through an opening l2 in the bottom ofthe casing.

' A two pole switch is in Fig. 1 shown fitted with a handle or knob 2lcarrying current from a source of energy 24 and which, when moved toconnect the two contacts of one of the poles 22 `or 23 thereof, willpass current from the source -of energy through the motor l5, thence toreturn the current to its source through a conductor 25. A wire 26extends from the pole 22 to the heat Helement M, from which the currentreturns throught-a conductor 27 and the conductor 25. The. poleii is by.a wire 23 shown connected with the heat element l5 anda wire 29 extendsfrom the latter to the elements lli to carry the current through thiselement and the conductor 2'! back to the source of energy.

-From this it is seen that, when the switch lever is thrown'to connectthe contacts of the pole g2., a circuit is closed through the heatelement le.

When on the other hand, the lever is thrown to the pole 23, a circuit isclosed through both heat elements. In addition, it is noticed that aswitch 3i! is placed in the conductor 27 to disrupt the circuit throughthe heat element when it is desired to circulate cool air through thedevice.

As above stated, an important feature of the invention is the provisionof means whereby the air circulating devices, including the motor 5,

:the- 'box and cover. 'to the lower en'ds of the bolts to lock unitYrigidly the switch 2U, the blower 9, the heat elements I4 and the baffleplate I8, all are assembled to form a complete unit before they areplaced within the casing. For the purpose of such assembly, the blowerhousing is shown made with lugs 35, 36 in which are seated rods 31, 38and the ends of these rods are threaded to receive lock nuts 39. Theheat' elements `I4 and-the baille plate I8 are all perforated to receivethese rods and tubular spacers 40, 4I, 42 are placed on the rods tomaintain the parts tightly united. 'Ihe motor is similarly, by means of.brackets 43. shown rigidly tied to the blower housing. But otherinterconnecting means may besubsti'tuted,

if desired. Having in suchmanner interlocked the air circulatingelements, it is merely required to seat this unit within the box Iand'to lock it in position therein. Illustrative of means for lockingthe unit in position, I have shown lugs 45, 4'6 projecting from one sidesurface of the blower housing. These lugs are perforated to receivebolts 41 which, after the 4cover 2 has been placed in position on thebox, are dropped through'perforations `of the cover, these lugs andperforations of the box bottom to take the posi- Ationsindicated in thedrawings. In addition, it .may be found preferable to place tubularspacers 48, 49` above and below the lugs 45, 46 to maintain theparts inproperly spaced relation to each other'without danger of buckling thematerial of Finallynuts 5I] are applied in position within thetightlyclosed casing. `If preferred, thebaie plate :may be omitted, in

vwhich case it is merely required to stagger the elements vertically. Inorder to makel itpossible to seat the unit it is necessary to cut arecess 32 in the upper'edge of the box to clear the'switch `1ever`2l, inaddition to which insulating means, such as a soft rubber bushing 33,should be providedto carry the conductors through the wall of thecasing. This bushing may conveniently be 4seated in 4the recess 32 whenthe unit is placed Ain position. vwithin the casing and this may befound most fconvenient where the'device is set permanently The switch isshown mounted orI semi-permanently for hea-ting or cooling. But theswitch lever or button may. of course, extend ith-roi-igh the wall ofthe casing in a manner simi- 'lar to that used in mounting the switch20.

From the foregoing it is seen that I have provided-a verv simule andinexpensive portable air conditioning-device which may hang on anysuitable-suoport to `serve the space within a vehicle or other space tobe heated.

"I'claim:

l. A portable electric heater comprising a rectangular casing, 4anvelectric motor in the casing, the casing having an Vair dischargeopening in ythe bottom thereof and an air inlet in the wall idirectlyopposite said motor, a blower in the casing having its'air inlet inregistration with said casing inlet and its outletV inline withsaiddiselements having perforations through the side edges thereof in axialalignment with said lug vthereof and an air inlet in the wall directlyopposite said motor, a blower in the casing having its air inlet inregistration with said casing inlet and its outlet in line with saiddischarge opening of the casing, two heat elements between the blowerair inlet and the said inlet opening of the `casing and extending fromthe bottom thereof to a point nearer the top thereof, a baffle plate eX-tending downward from the top of the casing between the two elements toa point nearer the bottom thereof, means maintaining said elementsrigidly suspended from the blower in spaced relation thereto and to eachother, a circuit energizing said motor and heat elements, and switchmeans forcutting out one or both of said heat elements.

3. A portable electric Iheater comprisingsa casing, an electric motor inthe casing, the casing having an air discharge opening in the bottom`thereoi:` and an air inlet. in the wall directly opposite said motor,`a blower in the casing having itsiair inlet in registration with saidcasing inlet and `its outlet'fin line with said discharge opening of:the casing, heat elements Vbetween the `blower air inlet andthe saidinlet.opening ofthe casing,'a fbale plate between the-.heat elements,the said heat elementsV and the baille plate being `staggered to causethe air from the blower to pass along all the side surfaces thereof .andmeans maintaining the elements andy the baiiie plate rigidly suspendedfrom the blower in uniformly spaced relations thereto and to each other.

4. A portable electric heater comprising a casing, an attachment elementon said casing,` -a soft resilient pad below'said element, an; electricmotor in the casing, the casi-ng havinganzair discharge opening in the.bottom thereof andan air inlet opening in the Wall directly oppositesaid motor, a blower in the casingy driven-by said motoi` andhavingitsair inlet in registration with said casing inlet and its outlet inline withisaid dischargeopeningofthecasing,heatelementsbetween theblower air inlet and thesaid inlet opening of the casing and meansmaintainingY said heatelements suspended from the blower inspaedxrelation thereto-and to eachother.

ARCHIE SJOSEPHSON.

REFERENCES CITED The following references are of record. in zthe iiielof this patent:

UNITED STATES `PATENTS Number Name Date 1,211,973 Slater iet f al. Jan.r 19,. 1917 1,366,519 Carmeanetzal. n n- Jan.2.5, 1921 1,423,800,.Hibbard :et al., July 25,1922

- l1,829,765 Spalding Nov. 3, 193.1 2,013,572 McCord Sept 3,;19352,085,772 Soverhill July 6, 1937 I2,248,959 Christman et al---" July15,` 1941 y2,459,986 Worden... Jan. `25, 1-949

